Find the Real Zeros of the Function $$F ( x ) = x ^ { 4 } - 10 x ^ { 2 } + 9$$

Multiple Choice

Find the real zeros of the function. List the x-intercepts of the graph of the function.
- $$F ( x ) = x ^ { 4 } - 10 x ^ { 2 } + 9$$

A) $x = - 9 , x = 9$
B) $x = - 1 , x = 1 , x = - 3 , x = 3$
C) $x = - 3 , x = 3$
D) $x = - 10 , x = 10$